Plastic Tubing Pun-16X2, 5-Si-100 Standard O.D Tubing, for Qs Plug Connectors, Cn and Ck Polyurethane Fittings (Not Approved for Use In theFood Industry) Outside Diameter=16 Mm, Bending Radius Relevant for Flow Rate=88 Mm, Inside Diameter=11 Mm, Min. Bending Radius=45 Mm, Tubing Characteristics=Suitable for Energy Chains In Applications with High Cycle Rates